((2i2/7-1i3/7)*1i1/6+1i5/6)*6 = ((16/7-10/7)*7/6+1i5/6)*6 = (6/7*7/6+1i5/6)*6 =
= (1+1i5/6)*6 = 2i5/6*6 = 17/6*6 = 17
Odpowiedź:
((2 i 2/7 - 1 i 3/7) * 1 i 1/6 + 1 i 5/6) * 6 = ((1 i 9/7 - 1 i 3/7) * 2 i 6/6) * 6 = (6/7 * 3) * 6 = 18/7 * 6 = 108/7 = 15 i 3/7